I feel like there is a strand in the human brain that cannot deal with not knowing things or being uncertain. You see this in mysteries like this, but you see the same thing in people's belief that UFOs are aliens, or conspiracy theories or religion. People pick an answer and then adhere to it ABSOLUTELY, being less willing to accept it is uncertain than they are facts like gravity. One example of this is flat earth. But the same "thought structure" occurs with people in political matters or vaccine/climate change denial.

Is there a name for this?